Does anyone here know whether each breast produces milk completely independently? I'm feeding my 4 month baby on one side only, and 2.5 year old on the other side, but she is starting to wean a bit (well I'm actually trying to night wean her, but that's another topic!!) and I'm so uncomfortable and swollen on that side. I'm just wondering, should I start feeding baby on that side to prevent mastitis? I actually prefer keeping him on one side, as then I know he's getting hindmilk each time, but I don't know whether my milk supply will regulate itself in the less used breast, over time?